1 ; Test that strcmp won't be converted to MVST if calls are 2 ; marked with nobuiltin, eg. for sanitizers. 3 ; 4 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 5 6 declare i8 *@strcpy(i8 *%dest, i8 *%src) 7 declare i8 *@stpcpy(i8 *%dest, i8 *%src) 8 9 ; Check strcpy. 10 define i8 *@f1(i8 *%dest, i8 *%src) { 11 ; CHECK-LABEL: f1: 12 ; CHECK-NOT: mvst 13 ; CHECK: brasl %r14, strcpy 14 ; CHECK: br %r14 15 %res = call i8 *@strcpy(i8 *%dest, i8 *%src) nobuiltin 16 ret i8 *%res 17 } 18 19 ; Check stpcpy. 20 define i8 *@f2(i8 *%dest, i8 *%src) { 21 ; CHECK-LABEL: f2: 22 ; CHECK-NOT: mvst 23 ; CHECK: brasl %r14, stpcpy 24 ; CHECK: br %r14 25 %res = call i8 *@stpcpy(i8 *%dest, i8 *%src) nobuiltin 26 ret i8 *%res 27 } 28 29 ; Check correct operation with other loads and stores. The load must 30 ; come before the loop and the store afterwards. 31 define i32 @f3(i32 %dummy, i8 *%dest, i8 *%src, i32 *%resptr, i32 *%storeptr) { 32 ; CHECK-LABEL: f3: 33 ; CHECK-DAG: l [[REG1:%r[0-9]+]], 0(%r5) 34 ; CHECK-NOT: mvst 35 ; CHECK: brasl %r14, strcpy 36 ; CHECK: mvhi 0(%r6), 0 37 ; CHECK: br %r14 38 %res = load i32 , i32 *%resptr 39 %unused = call i8 *@strcpy(i8 *%dest, i8 *%src) nobuiltin 40 store i32 0, i32 *%storeptr 41 ret i32 %res 42 } 43
